In motion
By: by Alfred K. Buchanan and William G. Martin. Illustrated by William Brooks.
Contributors: Martin, William G., joint author.; Brooks, William, 1914- illus.
Publisher: Prentice-Hall
Published: 1969
Place of publication: Englewood Cliffs, N.J
Language: eng
Number of pages: 68
Subjects: Motion -- Juvenile literature; Motion
Description: In order to interpret what happened when a briefcase containing top-secret government information was thrown from a moving train, the reader and the President must do some experiments to learn about motion, speed, velocity, and kinetic energy.